Electric power rivets the attention of many pilots even while the development of this power to propel airplanes continues to progress. If one uses solar cells, a designer need not necessarily rely on batteries. Eric Raymond, an American soaring and hang glider pilot, has been exploring solar-powered flight for some years. In this video we look at his newest project, the high-span Sunseeker Duo in which he and his wife plan to fly across and around Europe.
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